Home / 86,724.95-130,085.53-39,977.82

Finding the Fourth Proportional to 86,724.95, 130,085.53 and 39,977.82

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Solution

The fourth proportional to 86,724.95, 130,085.53 and 39,977.82 is: 59,965.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,724.95 : 130,085.53 = 39,977.82 : x
  2. Step 2: Convert to fraction form
    86,724.95/130,085.53 = 39,977.82/x
  3. Step 3: Cross multiply
    86,724.95x = 130,085.53 × 39,977.82
  4. Step 4: Simplify right side
    86,724.95x = 5,200,535,803.00
  5. Step 5: Solve for x
    x = 5,200,535,803.00/86,724.95
  6. Step 6: Final answer
    x = 59,965.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.